E-Rate: The FY2018 application filing window will open at noon EST on Thursday, January 11, 2018 and close at 11:59 PM EDT on Thursday, March 22, 2018. Thursday, February 22, 2018 is the last day applicants can certify an FCC Form 470, wait the required 28 days, and certify an FCC Form 471 on the last day of the window.